CN103147970A - Wireless network centralized control energy saving system for air compressors - Google Patents
Wireless network centralized control energy saving system for air compressors Download PDFInfo
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- CN103147970A CN103147970A CN2013101209255A CN201310120925A CN103147970A CN 103147970 A CN103147970 A CN 103147970A CN 2013101209255 A CN2013101209255 A CN 2013101209255A CN 201310120925 A CN201310120925 A CN 201310120925A CN 103147970 A CN103147970 A CN 103147970A
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- energy saving
- wireless network
- air compressor
- end monitoring
- monitoring computer
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Abstract
The invention discloses a wireless network centralized control energy saving method for air compressors. The wireless network centralized control energy saving method adopts a central energy saving control system, a front end monitoring computer, RS-485 communication interfaces, a control module and an air compressor group, and is characterized in that the central energy saving control system is connected with the front end monitoring computer through a wireless network, a set of computer network control management software is mounted on the front end monitoring computer, the software main body part adopts the multiple-document interface, and the system is divided into many parts including data collection, automatic control, networking control, data storage, data query, report generation, system parameter setting and the like. The control method provided by the invention has the advantages that the central energy saving control system is a set of controller independent from the air compressors and is used for controlling the work of the air compressors in the whole air compression station, the front end monitoring computer monitors the operation of the air compressors in the number (N) being eight, data is displayed on different interfaces, and the front end monitoring computer is provided with two paths of RS-485 communication interfaces for realizing the communication with the central energy saving control system and the air compressor group.
Description
Technical field
This patent belongs to electrical engineering and automatic control, electronic technology, information processing and electronics and computer technology application, is applied to industrial and mining enterprise, and specifically: this patent relates to a kind of air compressor wireless network centralized control method.
Background technique
Air compressor has a wide range of applications in industrial production, the universal energy that is only second to electric power, in industrial quarters, its total amount accounts for 15% left and right of the energy, due to compressed-air actuated extensive, extensive application, the air compressor that grows with each passing day is being made a large amount of compressed-air actuated whiles, and itself is consuming the energy of magnanimity.Known, the compressor operation mode is generally star triangle decompression starting, total head operation after starting.Existing air compressor controlling method concrete technology is: press start button, control system is connected initiator coil and is opened oil cut-off valve, air compressor starts under unloading mode, and this moment, suction valve was in the closed position, and bleed valve opens to discharge the pressure in deaerator; Step-down after 2 seconds air compressor begin load operating, system pressure begins to rise, if system pressure rises to the pressure switch CLV ceiling limit value, when being release pressure, controller is closed suction valve, the deaerator venting, air compressor no-load running, until system pressure drops to the pressure switch lower limit, namely knock-ons pressure lower time, controller makes INO, the deaerator bleed valve cuts out, air compressor is opened, and the deaerator bleed valve cuts out, air compressor full load operation.There is following shortcoming in above-mentioned control step: 1, the Unloading Control mode makes the pressure of pressurized gas change back and forth between pmin-pmax, and generally, pmin, pmax Relations Among can indicate with following formula: Pmax=(1+ ￡) pmin; ￡ is a percentage, and its numerical value is greatly between 10%-25%; The energy that the energy that air compressor is wasted under existing control system runnability mainly consumes when surpassing pmin at two part: A, compressed air pressure; After B, pressure reached pmin, existing control mode had determined that its pressure can continue to rise, until pmax, this process will discharge to the external world more heat, thereby causes energy loss; And before entering pneumatic element higher than the gas of pmin, its pressure need to be decompressed near pmin through reduction valve, and this process is the process of an energy loss equally.2, when pressure reaches pmax, air compressor comes unloading pressure by the following method: close suction valve and make motor be in idling conditions, simultaneously pressurized air unnecessary in knockout drum is passed through atmospheric valve emptying, this regulating method causes very large energy dissipation equally.In sum, the operation stability of the existing control system of air compressor is poor and waste energy.
Summary of the invention
the controlling method that this patent provides, the center energy saving control system is to control whole air compressor plant by the intelligent controller that a cover is independent of air compressor, system is by the concentrated distributed system of a cover front end monitoring computer monitoring multiple air compressors operation, system is by different settings, can monitor 1-8 compressor operations, monitor data is shown on different interfaces, the front end monitoring computer has 2 tunnel 485 interfaces (be respectively used to read the data of air compressor and upload data to DCS system), 1 road USB interface (can be used for connecing USB keyboard and mouse), the communication of front end monitoring computer and air compressor adopts one road RS485 cause for gossip existing, another road RS485 interface is used for the front end monitoring computer and communicates by letter with central reason device, central authorities' schistosity device can pass through this road 485, read the air compressor data that monitor in touch screen, or send control to touch screen, control compressor operation.The center energy saving control system links by wireless network and front end monitoring computer, one cover computer network control management software is housed on computer, software agent partly adopts multiple document interface, and system is divided into data capture, a plurality of funtion parts such as control, data storage, data query, report generation and system parameter setting of automatically controlling, network.System's Computer is main frame, and air compressor controller is slave.Take main frame " poll ", the point-to-point communication mode that slave " is replied ".Main frame RS232, external communication interface transducer is completed RS232 and is changed to RS485.
Description of drawings
The structural representation of this patent.Accompanying drawing number is: 1, center energy saving control system wireless network, 2, wireless network, 3, the front end monitoring computer, 4, the RS-485 communication interface, 5, control module, 6, the pneumatics unit.
Embodiment
With two of 45KW, air displacement: 8m
3/ min; Two of 30KW, air displacement: 4.5m
3/ min; Four air compressor examples describe in detail: gas consumption is lower than 4.5m
3During/min, automatically control a 30KW or a 45KW compressor operation, power of motor is between 15-45KW.Gas consumption is lower than 8m
3During/min, automatically control a 45KW or two 30KW compressor operations, power of motor is between 22-60KW.Gas consumption is higher than 8m
3/ min is lower than 13 m
3During/min, automatically control a 30KW and a 45KW compressor operation, perhaps two 45KW compressor operations, power of motor is between 38-90KW.Gas consumption is higher than 13 m
3/ min is lower than 16 m
3During/min, automatically control two 45KW compressor operations, perhaps two 30KW and a 45KW compressor operation, power of motor is between 45-105KW.The pneumatics unit moves 20 hours every day, and 6 hours air consumption 4m are wherein arranged
3/ min, 6 hours air consumption 10m
3/ min, 8 hours air consumption 12 m
3/ min.The power consumption of two 45-105KW air compressor machines of conventional system controlling run: the control method power consumption that [6h*0.75* (90kw/2)+6*0.25*90kw]+[6h*0.375* (90kw/2)+6h*0.625*90kw]+[8h*0.25* (90kw/2)+8h*0.75*90kw]=the 1406.25kw this patent provides: [6h*0.11*15kw+6h*0.89*30kw]+[6h*0.2*37.5kw+6h*0.8*75kw]+[8h*0.04*37.5kw+8h*0.96*75kw]=1163.1kw power consumption ratio: (1406kw-1163kw)/1163kw=0.2089=21% comprehensively appeals: the control method that this patent provides is than conventional system energy-conservation 21%, and this system can be moved rational air compressor machine number of units automatically according to gas consumption, make it to mate with air consumption, reach energy-conservation purpose.
?
Claims (4)
1. air compressor wireless network centralized control method, comprise: center energy saving control system (1), wireless network (2), front end monitoring computer (3), RS-485 communication interface (4), control module (5), pneumatics unit (6), it is characterized in that: described center energy saving control system (1) is connected with front end monitoring computer (3) by wireless network (2), one cover computer network control management software is housed on front end monitoring computer (3), software agent partly adopts multiple document interface, system is divided into data capture, automatically control, networking is controlled, the data storage, data query, a plurality of parts such as report generation and system parameter setting.
2. a kind of air compressor wireless network centralized control method as claimed in claim 1, it is characterized in that: center energy saving control system (1) is the controller that a cover is independent of air compressor, controls air compressor work in whole air compressor plant.
3. a kind of air compressor wireless network centralized control method as claimed in claim 1 is characterized in that: front end monitoring computer (3) monitoring N=8 platform compressor operation is shown to data on different interfaces.
4. a kind of air compressor wireless network centralized control method as claimed in claim 1, it is characterized in that: front end monitoring computer (3) has 2 road RS-485 communication interfaces (4) and communicates by letter with center energy saving control system (1) and pneumatics unit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101209255A CN103147970A (en) | 2013-04-09 | 2013-04-09 | Wireless network centralized control energy saving system for air compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101209255A CN103147970A (en) | 2013-04-09 | 2013-04-09 | Wireless network centralized control energy saving system for air compressors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103147970A true CN103147970A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101209255A Pending CN103147970A (en) | 2013-04-09 | 2013-04-09 | Wireless network centralized control energy saving system for air compressors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728093A (en) * | 2015-04-08 | 2015-06-24 | 肖清雄 | Air-compressor set intelligent control system based on internet of things |
| CN112610459A (en) * | 2020-12-31 | 2021-04-06 | 深圳市永捷机电工程技术有限公司 | Intelligent group control energy-saving system and method for air compressors |
Citations (6)
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|---|---|---|---|---|
| EP0825505A1 (en) * | 1996-08-21 | 1998-02-25 | GHH BORSIG Turbomaschinen GmbH | Method for remote power-up of machine-assemblies in particular for compressors and turbines |
| CN1405453A (en) * | 2001-09-17 | 2003-03-26 | 株式会社日立制作所 | Compressor long-distance monitoring system |
| US20070129850A1 (en) * | 2005-09-07 | 2007-06-07 | Miyaji Wendell M | Local Power Consumption Load Control |
| CN101655085A (en) * | 2009-07-28 | 2010-02-24 | 深圳寿力亚洲实业有限公司 | Air compressor monitoring equipment and system thereof |
| CN201436612U (en) * | 2009-03-24 | 2010-04-07 | 上海宏赛自动化电气有限公司 | Remote communication device for comprehensive intelligence control equipment of air compressor |
| KR101064538B1 (en) * | 2011-05-25 | 2011-09-14 | 주식회사 건영기계 | Smart air compressor system |
-
2013
- 2013-04-09 CN CN2013101209255A patent/CN103147970A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0825505A1 (en) * | 1996-08-21 | 1998-02-25 | GHH BORSIG Turbomaschinen GmbH | Method for remote power-up of machine-assemblies in particular for compressors and turbines |
| CN1405453A (en) * | 2001-09-17 | 2003-03-26 | 株式会社日立制作所 | Compressor long-distance monitoring system |
| US20070129850A1 (en) * | 2005-09-07 | 2007-06-07 | Miyaji Wendell M | Local Power Consumption Load Control |
| CN201436612U (en) * | 2009-03-24 | 2010-04-07 | 上海宏赛自动化电气有限公司 | Remote communication device for comprehensive intelligence control equipment of air compressor |
| CN101655085A (en) * | 2009-07-28 | 2010-02-24 | 深圳寿力亚洲实业有限公司 | Air compressor monitoring equipment and system thereof |
| KR101064538B1 (en) * | 2011-05-25 | 2011-09-14 | 주식회사 건영기계 | Smart air compressor system |
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| 李轶鹏: "空气压缩系统的远程监控和节能改造", 《内蒙古科技与经济》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728093A (en) * | 2015-04-08 | 2015-06-24 | 肖清雄 | Air-compressor set intelligent control system based on internet of things |
| CN112610459A (en) * | 2020-12-31 | 2021-04-06 | 深圳市永捷机电工程技术有限公司 | Intelligent group control energy-saving system and method for air compressors |
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Application publication date: 20130612 |